TM 1-6625-736-13&P TECHNICAL MANUAL *OPERATOR'S AND … · Data from the CADU is then compared with the specifications in this manual. If desired, the user may produce a hard copy

TM 1-6625-736-13&P

TECHNICAL MANUAL

*OPERATOR'S AND AVIATIONINTERMEDIATE MAINTENANCE MANUAL

(INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST)

FOR

TEST SET,ELECTRONIC

P/N 29085800NSN 6625-01-347-8667

DISTRIBUTION STATEMENT A: Approved for public release; distribution Is unlimited.

* US Army Test, Measurement, and Diagnostic Equipment Activity (USATA)

HEADQUARTERS, DEPARTMENT OF THE ARMY31 MARCH 1995

TM 1-6625-736-13&PC1

CHANGE HEADQUARTERSDEPARTMENT OF THE ARMY

NO. 1 WASHINGTON, D.C., 8 August 1996

*OPERATOR'S AND AVIATIONINTERMEDIATE MAINTENANCE MANUAL


TEST SET,ELECTRONICP/N 29085800

NSN 6625-01-347-8667

DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited.

TM 1-6625-736-13&P, 31 March 1995, is changed as follows:

1. Remove and insert pages as indicated below. New or changed text material is indicated by a vertical bar in themargin. An illustration change is indicated by a miniature pointing hand.

Remove pages Insert pages

i and ii i and ii2-5 through 2-8 2-5 through 2-82-8.1/(2-8.2 blank)2-9 and 2-10 2-9 and 2-102-13 and 2-14 2-13 and 2-14

2. Retain this sheet in front of manual for reference purposes.

*US Army Test, Measurement, and Diagnostic Equipment Activity (USATA)

TM1-6625-736-13&P

WARNING

The UTD infrared light gets extremely hot with prolonged use. Personal injury and lamp burn outcan occur if the lamp is left on too long a time. Limit lamp operation to 60 seconds or less.

CAUTION

Handle the test set with care as the electronic circuitry it incorporates can be damaged by shockfrom improper handling.

CAUTION

Install all cables prior to turning on external power.

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TM1-6625-736-13&P

CAUTION

This assembly contains parts sensitive to damage by ElectroStatic Discharge (ESD)

Use precautionary ESD procedures when touching, removing or inserting. Use static-free materialto wrap the assembly for shipment or storage.

CAUTION

Separate the Signal Generator PWA from the Front Panel I/F PWA with care so as to not bend theintegrated connecting pins.

CAUTION

Join the Signal Generator PWA and the Front Panel I/F PWA with care so as to not bend theIntegrated connecting pins.

b

TM 1-6625-736-13&P

TECHNICAL MANUAL HEADQUARTERSNo. 1-6625-736-13&P DEPARTMENT OF THE ARMY

WASHINGTON, D.C., 31 March 1995

OPERATOR'S AND AVIATION

INTERMEDIATE MAINTENANCE MANUAL


FOR

TEST SET,ELECTRONIC

P/N 29085800NSN 6625-01-347-8667

REPORTING ERRORS AND RECOMMENDING IMPROVEMENTS

You can help improve this publication. If you find any mistakes, or if you know of a way to improve theseprocedures, please let us know. Mail your letter or DA Form 2028 (Recommended Changes to Publications andBlank Forms) directly to: Commander, US Army Aviation and Troop Command, ATTN: AMSAT-I-MP, 4300Goodfellow Blvd. , St. Louis, MO 63120-1798. You may also submit your recommended changes by E-maildirectly to <mpmt%[email protected]>. A reply will be furnished directly to you. Instructions forsending an electronic 2028 may be found at the back of this manual immediately preceding the hard copy 2028.

Change 1 i

TM1-6625-736-13&P

TABLE OF CONTENTS

SECTION PAGE

CHAPTER 1 INTRODUCTION .................................................................................................................. 1-1Section I General Information ............................................................................................................... 1-1Section II Equipment Description ......................................................................................................... .1-4Section III Technical Principles of Operation ......................................................................................... .1-6

CHAPTER 2 OPERATING INSTRUCTIONS .............................................................................................. 2-1Section I Description and Use of Operator Controls and Indicators........................................................ 2-1Section II Operator Preventive Maintenance Checks and Services (PMCS) ......................................... .2-5Section III Operation Under Normal Conditions...................................................................................... .2-5Section IV Operation Under Unusual Conditions ..................................................................................... 2-5Section V Calibration ............................................................................................................................. 2-6

CHAPTER 3 AVIATION UNIT MAINTENANCE (AVUM) INSTRUCTIONS................................................. 3-1

CHAPTER 4 AVIATION INTERMEDIATE MAINTENANCE (AVIM) INSTRUCTIONS .............................. .4-1Section I Repair Parts, Special Tools, and Support Equipment ............................................................ .4-1Section II Service Upon Receipt ............................................................................................................ 4-1Section III Preventive Maintenance Checks and Services (PMCS) ......................................................... 4-2Section IV Troubleshooting ..................................................................................................................... 4-6Section V Maintenance Procedures...................................................................................................... 4-11Section VI Preparation for Storage and Shipment ................................................................................. 4-19

APPENDIX A REFERENCES .........................................................................................................................A-1

APPENDIX B MAINTENANCE ALLOCATION CHART................................................................................B-1Section I Introduction ............................................................................................................................B-1Section II Maintenance Electronic Test Set NSN: 6625-01-347-8667 .....................................................B-3Section III Tool and Test Equipment Requirements ................................................................................B-3Section IV MAC Reference Code and Remarks ......................................................................................B-4

APPENDIX C REPAIR PARTS AND SPECIAL TOOLS LIST .....................................................................C-1Section I Introduction ...........................................................................................................................C-1Section II Repair Parts List .................................................................................................................C-1-1Section III Special Tools List .............................................................................................................. C-III-1Section IV National Stock Number and Part Number Index ...................................................................... I-1

APPENDIX D EXPENDABLE/DURABLE SUPPLIES AND MATERIALS LIST ...........................................D-1Section I Introduction ............................................................................................................................D-1Section II Expendable/Durable Supplies and Materials List . ..................................................................D-2

APPENDIX E MANUFACTURED ITEMS LIST ............................................................................................E-1

APPENDIX F TORQUE LIMITS .....................................................................................................................F-1

ALPHABETICAL INDEX ....................................................................................................................... INDEX-1

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TABLE OF CONTENTS (CONT.)

LIST OF ILLUSTRATIONS

FIGURE NO. TITLE PAGE

1-1 ElectronicTest Set 1-2

2-1 ElectronicTest Set Connections 2-22-2 ElectronicTest Set Front Panel 2-42-3 CADU Start-Up Selection Menu 2-72-4 Summary Display Printout 2-12

4-1 Test Equipment Interconnections 4-3

C-1 ElectronicTest Set C-1-1

LIST OF TABLES

TABLE NO. TITLE PAGE

1-1 Reference Data 1-4

2-1 UTD Expected Output 2-16

4-1 Minimum Specifications of Equipment Required 4-34-2 Expected Signal Output 4-54-3 Expected Frequency Output 4-5

F-1 Standard Torque Limits F-1

iii/(iv blank)

TM1 6625-736-13&P

CHAPTER 1INTRODUCTION

SECTION I - GENERAL INFORMATION

1-1 SCOPE 1-1

a. This manual contains the operation and maintenance procedures for the Electronic Test Set, Part Number29085800 (figure 1-1).

b. This unit is a calibrated instrument used to verify calibration of the Aviation Vibration Analyzer (AVA) Test Set,Part Number 29313102.

1-2 MAINTENANCE FORMS, RECORDS AND REPORTS 1-2

Department of the Army forms and procedures used for equipment maintenance will be those prescribed by DA PAM738-751, The Army Maintenance Management System Aviation (TAMMS-A).

1-3 DESTRUCTION OF ARMY MATERIAL TO PREVENT ENEMY USE 1-3

Procedures for destroying Army Material to prevent enemy use are listed in TM 750-244-1-4.

1-4 PREPARATION FOR STORAGE OR SHIPMENT 1-4

Instructions are provided in Chapter 4.

1-5 REPORTING EQUIPMENT IMPROVEMENT RECOMMENDATIONS 1-5

If your Electronic Test Set needs improvement, let us know. Send us an EIR. You, the user, are the only one who cantell us what you don't like about your equipment. Let us know why you don’t like the design.

Put it on a SF368 (Quality Deficiency Report) and mail it to us at:

Commander,U.S. Army Aviation and Troop CommandATTN: AMSAT-I-MDO4300 Goodfellow Blvd.St. Louis, MO 63120-1798

We'll send you a reply.

1-1

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Figure 1-1. Electronic Test Set

1-2

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1-6 LIST OF ABBREVIATIONS/ACRONYMS 1-6

ACC Accelerometer

AGC Automatic Gain Control

AGND Analog Ground

AVA Aviation Vibration Analyzer

BNC Bayonet N Connector

CADU Control and Display Unit

CALCHK Calibration Check

DAU Data Acquisition Unit

DOS Disk Operating System

DVM Digital Volt Meter

EIR Equipment Improvement Recommendation

EPT Enhance Passive Tracker

EXT External

GND Ground

GRN Green

IBM International Business Machines

LED Light Emitting Diode

MAG SEN Magnetic Sensor

OPRCHK Operational Check

PC Personal Computer

PWA Printed Wire Assembly

PGND Passive Ground

RADSCOM Rotor Analysis Diagnostic System Communication

SGND Signal Ground

TACHO Tachometer

TAMMS-A The Army Maintenance Management System - Aviation

TRKR Tracker

TRKTST Tracker Test

USATA U S Army Test, Measurement and Diagnostic Equipment Activity

UTD Universal Tracking Device

1-3

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SECTION II - EQUIPMENT DESCRIPTION1-7 EQUIPMENT CHARACTERISTICS, CAPABILITIES AND FEATURES 1-7

FUNCTION

a. General. The Electronic Test Set is intended to generate a set of signals for the Data Acquisition Unit (DAU).The unit provides simulated accelerometer, tachometer, and tracker signals. In addition, an optical simulation ofthe rotor is provided to functionally test the Universal Tracking Device (UTD).

b. Electrical System. Primary power is supplied from the DAU through the multi-channel connector located on backof the unit. The power requirement is 24 Vdc.

1-8 EQUIPMENT DATA 1-8

Refer to table 1-1 for summary of capabilities, limitations, and other critical operation and maintenance data.

Table 1-1. Reference Data

UNIT DIMENSIONS

Electronic Test Set Height inches (mm): 7.56 (192)Width inches (mm): 9.00 (229)Depth inches (mm): 6.00 (152)Weight pounds (kg): 7.30 (3.31)

POWER REQUIREMENTS

Electronic Test Set Input power: 24 Vdc

ENVIRONMENTAL REQUIREMENTS

Electronic Test Set Operating: -40 to +55°C

Storage: -51 to +71°C

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TM1-6625-736-13&P

1-9 DESCRIPTION 1-9

The Electronic Test Set verifies the calibration of the Data Acquisition Unit (DAU). The test set simulates theaccelerometer, tachometer and tracker signals and contains an optical simulation of the rotor to functionally test theUniversal Tracking Device (UTD).

Connections on the rear panel will cause the appropriate Light Emitting Diodes (LEDs) to illuminate indicating thesystems connected. These connections are:

a. Accelerometers 1-4 (ACC 1-4)

b. Universal Tracking Device/Enhanced Passive Tracker (UTD/EPT)

c. Magnetic Sensor (MAG SEN)

d. Tracker 1, 2 (TRKR)

e. Tachometer 1,2 (TACH)

f. External Clock (EXT CLK)

g. External Accelerometer (EXT ACC)

The front panel of the test set contains 28 LEDs, eight switches and the optical tester. Specifically these LEDs are:

a. Internal Power

b. Multi-Channel

c. Tracker 1

d. Tacho 1

e. ACC 1-14 GND OK

The eight switches are labeled:

a. ACC1-4 54mV/g / 100mV/g

b. Active/Passive

c. Tacho Control TACH 2

d. Tacho Control TACH 1

e. ACC Signal Select

The front panel is protected by a removable cover that is locked in place with a draw latch. A folding handle attachedto the top cover allows the unit to be easily transported.

1-5

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SECTION III- TECHNICAL PRINCIPLES OF OPERATION1-10 PRINCIPLES OF OPERATION 1-10

Power for the Electronic Test Set is provided through the multi-channel (MULTI-CH) connector located on the back ofthe unit. In addition, this connection interfaces ACCELEROMETER channels 5-14, TACHO channel 2 and TRACKERchannel 2. Proper connection is obtained when the INTERNAL POWER LED is illuminated.

Calibration of the DAU is performed using a Personal Computer (PC), Control and Display Unit (CADU), the DAU, andthe appropriate cables. A printer is optional.

The procedure to verify the calibration of the DAU is achieved by programming the CADU with the supplied softwarevia a PC. Calibration checks are performed automatically by executing the internally stored program downloaded tothe CADU. Data from the CADU is then compared with the specifications in this manual. If desired, the user mayproduce a hard copy of the results if a printer is connected to the system.

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TM1-6625-736-13&P

CHAPTER 2OPERATING INSTRUCTIONS

SECTION I - DESCRIPTION AND USE OF OPERATOR CONTROLS AND INDICATORS

2-1 GENERAL 2-1

This chapter contains instructions for unpacking and using the Electronic Test Set. Preventive maintenance checksand services are included. Also included are descriptions of operator's controls and indicators, operating proceduresand unit calibration procedures.

2-2 PRE-OPERATION PROCEDURES 2-2

CAUTION

Handle the test set with care as the electronic circuitry it incorporates can be damaged by shockfrom improper handling.

2-3 CONNECTIONS, SWITCHES AND INDICATOR LIGHTS 2-3

a. General. This section describes the various connections, switches and indicator lights and furnishes the operatorwith sufficient information to operate the unit.

b. Connections (figure 2-1). Connections on the rear panel of the unit will cause the appropriate LEDs to illuminateindicating those systems connected and working. These connections perform the following functions:

(1) ACC 1-4These connections facilitate the testing of the accelerometer cables for functionality. They are connectedto the simulated accelerometers inside the unit and to the appropriate connection on the DAU front panel.

(2) UTD/EPTThis connection is provided for the UTD cable.

(3) MAG SENThis connection interfaces to a magnetic interrupt cable to provide the channel 1 TACHO input to the DAU"TACH" connector.

(4) TRKR 1, 2Provides the test outputs for synchronizing an oscilloscope to the tracker signals.

(5) TACH 1,2These connections allow synchronization to the tachometer outputs.

2-1

TM1-6625-736-13&P

Figure 2-1. Electronic Test Set Connections

2-2

TM1 -6625-736-13&P

(6) EXT ACC and EXT CLKThese inputs are used to drive the unit to frequencies and amplitudes which are not calibrated internally.During normal operation these are not used. Inputs to these connectors should not exceed 5V and theexternal clock input must have a ground reference to the unit through an external loop (not including itsBNC connection).

c. Front Panel (figure 2-2). The front panel of the test set contains 28 LEDs, eight switches and the optical tester.Each switch performs specific functions while each illuminated LED indicates a positive connection to power andground.

d. Indicator lights. Each illuminated LED indicates the following:

(1) INTERNAL POWERThis LED indicates the internal power supply is providing the 5V necessary for proper operation of the unit.If this light is not illuminated the unit will not function.

(2) MULTICHANNELFive LEDs in this group indicate a positive connection of 24V, PGND (24 V rtn), ±15V and AGND (analogground).

(3) TRACKER 1Similar to the MULTICHANNEL section these LEDs indicate a positive connection from the unit to theDAU. Illumination of these LEDs are not required to operate the unit.

(4) TACHO 1If using a magnetic interrupter only the SGND LED will illuminate.

(5) ACC 1-14Whenever an accelerometer is connected to the unit the GND OK LED for that accelerometer shouldilluminate. Failure of illumination for a given ACC channel indicates a broken connection or cable.

e. Eight switches on the front panel perform the following functions:

(1) ACC 1-4These switches connect the signal to the proper connector pins and allows for proper interfacing with thecorrect accelerometer type. Connectors on each type are identical but internal wiring is different. Thisswitch permits proper interfacing and prevents an UACCELEROMETER FAULT' error message on theControl and Data Unit (CADU).

(2) ACTIVE/PASSIVEGenerates the simulated signals for the UTD.

(3) TACHO CONTROL TACH2 Generates a monopulse (unipolar) or bipulse (bipolar) on the channel 2 tachometer input.

(4) TACHO CONTROL TACH 1The switch position determines if a single bipulse drives Tacho Channel 1 or if a double bipulse marks thetarget blade, with the rest of the blades generating a single bipulse.

2-3

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Figure 2-2. Electronic Test Set Front Panel

2-4

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(5) ACC SIGNAL SELECTProvides a calibrated attenuation of the accelerometer signal. This function checks the Automatic GainControl (AGC) of the Electronic Test Set. In EXT position the external accelerometer BNC connector isselected. This allows the user to route a signal from a second source (such as a synthesizer) to theaccelerometer interface. When using EXT mode be aware that the 54 mV/g accelerometers require abouta 5V offset on the signal to meet bias requirements.

SECTION II OPERATOR PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS)

2-4 BEFORE YOU OPERATE 2-4

Always keep in mind CAUTIONs and WARNINGs. Handle the test set like you would any other delicate piece ofelectronic equipment. Follow instructions and procedures for proper operation.

2-5 PERFORMANCE CHECKS 2-5

Ensure the Electronic Test Set has a current calibration tag.

SECTION III OPERATION UNDER NORMAL CONDITIONS

2-6 GENERAL PROCEDURES 2-6

This section includes unpacking instructions, installation instructions and operating procedures.

2-7 UNPACKING 2-7

The Electronic Test Set is a self-contained unit.

2-8 INSTALLATION 2-8

No installation is required for the Electronic Test Set.

SECTION IVOPERATION UNDER UNUSUAL CONDITIONS

2-9 UNUSUAL CONDITIONS 2-9

There are no requirements for unusual operating conditions.

2-10 EXTREME ENVIRONMENTAL MAINTENANCE 2-10

There are no requirements for extreme environmental maintenance for the Electronic Test Set.

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TM 1-6625-736-13&P

SECTION V-CAUBRATION

2-11 CAUBRATION PROCEDURE FOR AVA TEST SET (P/N 29313102) 2-11

The Electronic Test Set generates a set of signals which correspond to an imaginary four bladed helicopter. The rotordescription and setup files are contained in the script files INITCAL. The CAL scripts can be modified by the user tosupport any particular combination of accelerometers, trackers and tachos.

To verify calibration of the DAU the following hardware is required:

a. DAU (P/N 29328201)

b. CADU (PIN 29314102)

c. Electronic Test Set (PIN 29085800)

d. External 28 Vdc power source

e. IBM PC (or compatible) with DOS Version 3.3 or higher and an RS-232 port

f. RS-232 cable (P/N 28130802) with adapter (PIN 28130801) (supplied with the AVA)

g. RADSCOM diskette (PIN 29725200) (supplied with the AVA)

h. INITCAL diskette (PIN 29304200) (supplied with the Electronic Test Set)

i. Printer (Recommended)

(1) PROGRAM THE CADU

(a) Connect the CADU to the PC using the RS-232 cable (P/N 28130802) from CADU RS-232 port (9-pin connector) to the PC RS-232 port. You may or may not need the gender changer (DB25F toDB25F, part number 28130800) and/or the RS-232 adapter (DB25M to DB9F, part number28130801) depending upon the configuration of your PC.

(b) Install RADSCOM program from the RADSCOM diskette (PIN 29725200) (supplied with AVA) on C-Drive. On the PC execute the program RCOM. Create a subdirectory within the director C. calledaircraft. EX: C:\RADSCOM\AIRCRAFT. Then copy the disc labeled INITCAL to that newsubdirectory.

(c) Reboot the CADU by pressing the OFF key. Turn the CADU back on by pressing the ON key whilepressing and holding the HELP key. The following message will display for a few seconds:

CADU System Bootstrap V 3.10Please wait...

When the above message goes away, the start-Up Selection Menu will appear (refer to figure 2-3).

2-6 Change 1

TM 1-6625-736-13&P

Figure 2-3. CADU Start-Up Selection Menu

(d) Select option 2, "Set up for host communication".

(e) From the PC main menu, select "Load Data or Aircraft Setup File from PC to CADU".

(f) Install INITCAL program from the INITCAL diskette (P/N 29304200). When prompted for a file name enter:INITCAL. CMD. EX: Initial. CMD.

(g) When the system has completed transferring files, the message "Press any key. . . ' will appear. Press any keyon the PC to return to the main menu and select QUIT from the available options to re-boot the CADU. Whenthe re-booting process is completed you will be returned to the main menu on the PC. Select EXIT to end theprogram and return to the DOS prompt.

(h) On the CADU, select option 1. This will place the CADU in the Operational Mode. Allow the CADU to stabilize,then disconnect from the computer and continue with SETUP.

(2) SETUP

Establish connections between the DAU, CADU, Electronic Test Set, and external power as follows:

CAUTION

Install all cables prior to turning on external power.

NOTE

Calibration of the DAU will be conducted in a two part process. Test States 1 : XX_1 will test ACCports 1 and 2. Test States 1 :XX_2 will test ACC ports 3 and 4. Procedures for each process isidentical.

Change 1 2-7

TM 1-6625-736-13&P

(a) Ensure external power and both the DAU and CADU power switches are OFF. Connect the DAU to anexternal bench power source of 28 Vdc. : (+28 VDC to pin B and -to pin A).

(b) Establish a connection from the DAU jack labeled TRACKER 1 to the UTD/EPT jack on the Electronic TestSet using the UTD Cable, part number 29325701.

(c) Connect the MULTI-CH connection on the DAU to the MULTI-CH connection on the Electronic Test Setusing cable part number 29283200.

(d) Connect TACHO1 on the DAU to the MAG SEN connection on the Electronic Test Set using the MagneticRPM Sensor Cable, part number 29105403.

(e) For Test States 1: 4_1,, 1: 16_1 and 1: 64_1, connect ACC1 on the DAU to the connector ACC1 on theElectronic Test Set using the 25-ft 54 mv/g Accelerometer Cable, part number 29105605.

(f) For Test States 1: 4_1, 1: 16_1 and 1: 64_1, connect ACC2 on the DAU to the connector ACC2 on theElectronic Test Set using the 50-ft 54 rv/g Accelerometer Cable, part number 29105600.

(g) Connect the CADU to the DAU using cable part number 29325601. This connection is made from the frontpanel of the DAU to the back panel of the CADU.

(h) Position TRACKER MODE selector switch on the DAU to DAY.

(i) If a printer is desired refer to TM 1-6625-724-1 3&P for directions on how to connect the printer to theCADU.

(j) Turn on external power source.

(3) PROCEDURE TO VERIFY CALIBRATION OF THE DAU

NOTE

Failure to position the switches in the following order will result in erroneous calibration readings.

(a) Set the switches on the Electronic Test Set to the following positions:

(1) 54 mV/g 100 mV/g switches to 54 mV/g.

(2) Active/Passive switch to PASSIVE (3) TACH 2 Mono pulse/Bi pulse switch to Bl PULSE.

(4) TACH 1 Single/Double switch to SINGLE.

(5) ACC Signal Select switch to 1: 4.

(b) Turn the DAU power switch to ON.

(c) Turn the CADU power switch to ON.

2-8 Change 1

TM 1-6625-736-13&P

NOTE

A maximum of 21 of the 28 LEDs should illuminate during calibration of the DAU. Only thoseaccelerometer channels (ACC 1-4) connected to power and the ground (ACC 5-14) shouldilluminate.

(d) Check for LED illumination on the Electronic Test Set.

(1) TACHO 1: SGND

(2) TRACKER 1: 24, PGND

(3) MULTICHANNEL: 24, PGND, 15,-15, AGND

(4) ACC1 through ACC14

(5) INTERNAL POWER

(e) Using the CADU press Fl on the keypad.

(f) Select CAL from the menu selections. Press DO. If there is not a CAL option on your menu, then you mustupgrade the AVA software.

NOTE

Perform this procedure only if your CADU does not have the CAL option on the menu.

(1) On a 386 or 486 computer make a directory called RADSCOM.

(2) While you are in that directory make a subdirectory called aircraft.

(3) Install the INITCAL floppy into the computer and copy the files to C: .

(4) Install credit card (P/N 28131220) into CADU and then reboot the CADU by turning CADU OFF then holddown the HELP key while turning ON.

(5) On CADU choose #2 communicate with computer.

(6) On computer choose maintenance utilities.

(7) On computer choose credit card format.

(8) Return to main menu.

(9) Choose load data or aircraft setup file from PC to CADU.

(10) Enter file name to be loaded: INITCAL. CMD 11 on CADU choose load. FILE: INITICAL. CMD 12. Returnto main menu and proceed with the calibration.

Change 1 2-8.1/(2-8.2 blank)

TM 1-6625-736-13&P

(g) Select NEW. Press DO. When DO is pressed, an Entry Form will appear in the display allowing entry of a newtail number. When calibrating the DAU with the Electronic Test Set, enter the alphanumeric serial number of theCADU using the F1 and F2 function keys. The F1 and F2 keys scroll through the allowed characters set. Thatset is the blank character, 0 - 9, A - Z, and a - z. F1 scrolls forward through the list and F2 scrolls backward.Selection of a character is accomplished by scrolling to characters and moving to a different position using theLEFT and RIGHT keys. The rightleft arrow keys move the cursor to the next character or previous character inthe serial number. After the desired serial number has been entered, press DO to store the new serial numberand return to the Main Operations Menu. The QUIT key can be employed at any time to cancel the serialnumber entry and return to the Main Operations Menu.

(h) Select CAL. Press DO.

NOTE

The 1: 1 attention range on the Electronic Test Set is not used for 54 mV/g accelerometer testing.

(i) Verify Test State 1:4_1 on the CADU is selected.

(1) On the Electronic Test Set position ACC Signal Select to 1:4. Press DO twice on the CADU.

(j) The CADU will transfer to the MEASURING screen and automatically process the signals to the DAU.Successful completion of the measurement data results in a screen that reads:

Change 2-9

TM1 6625-736-1 3&P

Processing Data ...-- Pilot Trnsltlon -*

Next Test State: (selected test state)Standby... While data Is loading.

No key presses are required. The CADU will automatically progress to the next screen.

NOTE

If channel errors occur you will be transferred to the ERRORS REPORTED screen to view the errormessage(s). Press QUIT to exit and return to the Test State screen. If some, but not all of thechannels measured, "partial" will appear to the right of Test State.

If no data was acquired due to channel errors, 'failed' will appear to the right of Test State.

If the measurement was successful, a 'done' will appear to the right of the selected Test State.

If an unsuccessful test occurs, refer to the Troubleshooting section in chapter 4.

Proceed to the next Test State.

(k) Veritfy Test State 1: 16_1 on the CADU is selected.

(1) On the Electronic Test Set position ACC Signal Select to 1: 16. Press DO twice on the CADU.

(2) The procedure will repeat as per step (a).

(I) Verify Test State 1: 64_1 on the CADU is selected.


(2) The procedure will repeat as per step (j).

(m) For Test States 1: 4_2, 1: 16_2 and 1: 64_2, connect ACC3 on the DAU to the connector ACC3 on theElectronic Test Set using the 25-ft 54 mv/g Accelerometer Cable, part number 29105605.

(n) For Test States 1: 4_2, 1: 16_2 and 1: 64_2, connect ACC4 on the DAU to the connector ACC4 on theElectronic Test Set using the 50-ft 54 mv/g Accelerometer Cable, part number 29105600.

(o) Verify Test State 1: 4_2 on the CADU is selected.


(2) The procedure will repeat as per step (1).

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TM1 -6625-736-13&P

(p) Verify Test State 1:16_2 on the CADU is selected.


(2) The procedure will repeat as per step a).

(q) Verify Test State 1:64_2 on the CADU is selected.


(2) The procedure will repeat as per step (j).

(r) Verify Test State TEST on the CADU is selected.


(2) The procedure will repeat as per step 0).

(s) Select Finish and press DO.

(t) Select Main Menu and press DO.

(u) Press F2.

(v) Select Summary Displays. Press DO.

(w) Proceed to CALIBRATED DATA.

(4) CALIBRATED DATA

(a) Compare the Summary Display for system under test with figure 2-4 (the values in parentheses are the allowabletolerances). If the DAU exhibits faulty tolerance readings refer to the Troubleshooting section in chapter 4.

NOTE

Recommend using printer to print out summary displays to assist in summary data review.

(b) Press QUIT twice to return to main menu.

(5) UTD Test

(a) The UTD test is limited on the Electronic Test Set. Calibration is limited to:

(1) Ensuring the UTD infrared light illuminates.

(2) Ensuring the UTD registers measurement.

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Available Summary Displays

1st Harmonics3rd Harmonics5th HarmonicsPRINT ALL DISPLAYS

CAL 77 CAL NFLOWN 15:57:00 28 SEP 94 N

NN

SYNCHRONOUS VIBRATION

1st Harmonics (ips / deg)STATE CH1 deg CH2 deg1:4_1 (34.4 ±2.0) (343 ±5) (34.4 ±2.0) (343 ±5)1:16_1 (8.4 ±0.5) (343 ±5) (8.4 ±0.5) (343 ±5)1:64_1 (2.2 ±0.2) (343 ±5) (2.2 ±0.2) (343 ±5)1:4_2 ? ? ? ?1:16_2 ? ? ? ?1:64_2 ? ? ? ?

1st Harmonics (ips / deg)STATE CH3 deg CH4 deg1:4_1 ? ? ? ?1:16_1 ? ? ? ?1:64_1 ? ? ? ?1:4_2 (34.4 ±2.0) (343 ±5) (34.4 ±2.0) (343 ±5)1:16_2 (8.4 ±0.5) (343 ±5) (8.4 ±0.5) (343 ±5)1:64_2 (2.2 ±0.2) (343 i5) (2.2 ±0.2) (343 ±5)

CAL 777 CAL NFLOWN 15:57:00 28 SEP 94 N

NN

SYNCHRONOUS VIBRATION

3rd Harmonics (ips / deg)STATE CH1 deg CH2 deg1:4_1 (3.8 ±0.4) (314 ±5) (3.8 ±0.4) (314 ±5)1:16_1 (0.92 ±0.1) (314 ±5) (0.92 +0.1) (314 ±5)1:64_1 (0.24 ±0.04) (314 ±5) (0.24 ±0.04) (314 ±5)1:4_2 ? ? ? ?1:16_2 ? ? ? ?1:64_2 ? ? ? ?

Figure 2-4. Summary Displays Printout (Sheet 1 of 2)

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Figure 2-4. Summary Displays Printout (Sheet 2 of 2)

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TM 1-6625-736-13&P

(b) Test the infrared light

(1) Ensure DAU power is OFF. Connect the UTD to the DAU.

(2) Disconnect UTD cable from Electronic Test Set and reconnect to UTD.

WARNINGThe UTD infrared light gets extremely hot with prolonged use. Personal injury and lamp bumout can occur if the lamp 18 left on too long a time. Limit continuous lamp operation to 60seconds or less.

(3) Turn DAU power ON. Position TRACKER MODE test switch to TEST. Ensure the infrared lampilluminates. If the lamp fails to work refer to TM 1-6625-724-13&P for repair or troubleshootingprocedures. Turn the TRACKER MODE switch to DAY mode, turn DAU power OFF and allow thelamp to cool for a few seconds before proceeding.

(c) Ensure the UTD registers a measurement.

NOTEFailure to position the UTD properly on the Electronic Test Set will result in a measurementerror. No data will be taken and can lead to erroneous conclusions. If no data is obtainedduring the test, dean the UTD dear lens with a lint free cloth, reposition the UTD on the testset, hold in place and retest.

(1) Position the UTD on the Electronic Test Set so the lens assembly on the UTD sits into the lensassembly of the test set. Make sure the direction of rotation arrow on the UTD matches the directionof rotation arrow on the Electronic Test Set.

(2) Position the TRACKER MODE selection switch to NIGHT.

(3) On the Electronic Test Set, position the ACTIVE/PASSIVE switch to ACTIVE.

(4) Select Flight Plan and press DO. Select CAL and press DO. Next select OPRCHK and press DO.Then press F1.

NOTEFor instructions on how to take a measurement using the CADU refer to TM 1-6625-724-13&P.

2-14 Change 1

TM1-6625-736-13&P

(d) Press QUIT. Next select SAVE and EXIT. Then press DO.

(1) Select MAIN MENU. Press DO.

(2) Press F2 for DISPLAY.

(3) Select One Test State. Press DO.

(4) Select TRKTST. Press DO.

(5) Select CHANNEL 1 TRACK. Press DO.

(6) Press the right arrow once to target the green blade by setting the reference block from MEAN toGRN. Press F3 for TABLE.

NOTEAll limits described in table 2-1 are referenced to the GRN blade. The values in parenthesesare the allowable limits in millimeters. Ensure CADU track DISPLAY is in the same scale. IfCADU track DISPLAY scale is in inches, multiply displayed track value by 25.4 or change thescale with the MANAGER menu (refer to TM1-6625-724-13&P).

(e) Examine the values given in the display and compare to table 2-1. If values are outside the tolerancegiven, open UTD, inspect and replace the Printed Wire Assembly (PWA) in accordance with TM1-6625-724-13&P.

(f) Exit the TABLE screen by pressing QUIT three times.

(g) Select DAY on the DAU Tracker Mode switch.

(h) Repeat steps (c)(4)-(f).

Table 2-1. UTD Expected Output

Blade Track Lag

GRN (0 ± 2 mm) (0 ± 2 mm)YEL (2 ± 2 mm) (-0.4 ± 2 mm)RED (5 ± 2 mm) (-0.7 ± 2 mm)BLU (8 ± 2 mm) (-1.0 ± 2 mm)

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TM1-6625-736-13&P

CHAPTER 3AVIATION UNIT MAINTENANCE (AVUM) INSTRUCTIONS

3-1 GENERAL 3-1

Aviation Unit Maintenance (AVUM) is not applicable for the Electronic Test Set.

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TM1-6625-736-13&P

CHAPTER 4AVIATION INTERMEDIATE MAINTENANCE (AVIM) INSTRUCTIONS

4-1 GENERAL 4-1

This chapter contains maintenance procedures that are the responsibility of the Aviation Intermediate MaintenanceTechnician as authorized by the Maintenance Allocation Chart (MAC) and Source Maintenance and Recoverability(SMR) coded items in the Repair Parts and Special Tools Lists (RPSTL). The maintenance procedures in this chapterare prepared in the form of summary and detailed procedures.

4-2 MAINTENANCE OPERATIONS 4-2

These instructions provide the proper technique and detailed procedures required to perform the maintenanceoperations. Each maintenance operation provides step-by-step instructions in the order in which the work is mostlogically accomplished. Any unusual or critical steps are covered in detail.

SECTION I-REPAIR PARTS, SPECIAL TOOLS, AND SUPPORT EQUIPMENT

4-3 TOOLS AND TEST EQUIPMENT LIST 4-3

Tools and test equipment required for maintenance of the Electronic Test Set are identified in Appendix B.

For authorized common tools and equipment refer to the Modified Table of Organization and Equipment (MTOE)applicable to your unit.

4-4 SPECIAL TOOLS AND SUPPORT EQUIPMENT 4-4

Refer to TB 9-6625-2310-35 for special tools and support equipment.

4-5 REPAIR PARTS 4-5

Repair parts are listed in the RPSTL, Appendix C of this manual.

SECTION II-SERVICE UPON RECEIPT

4-6 GENERAL 4-6

a. Visually check exterior surfaces of the Electronic Test Set for apparent damage. Check exterior connectors fordamage. Check Top Plate Assembly (C-1-1) for broken switches, missing or broken collar link, missing ordamaged selector knob and broken or damaged lens.

4-1

TM 1-6625-736-13&P

b. If the unit has been damaged, report the damage on SF368, (Report of Discrepancies).

SECTION III-PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS)

4-7 GENERAL 4-7

Inspect the Electronic Test Set for missing or damaged components. Check for physical damage such as breaks, cracks,wear, etc.

4-8 LUBRICATION 4-8

There are no lubrication tasks required.

4-9 CLEANING 4-9

Use spray cleaner (Item 1, App. D) to clean the outside surfaces of the test set. Wipe clean and dry with a soft cloth.Clean the lens with lens cleaner (Item 2, App. D).

4-10 ELECTRONIC TEST SET CALIBRATION 4-10

a. GENERAL

Calibration is required to verify the outputs of the Electronic Test Set comply with a set of specificationsestablished by the National Bureau of Standards. Verification requires it be tested with calibrated testequipment.

b. REQUIRED EQUIPMENT

Table 4-1 identifies the specific equipment required. Connect equipment as shown in figure 4-1.

c. PROCEDURE

NOTEAllow any test equipment requiring warm up to reach operational temperature beforecontinuing.

(1) Ensure external power and DAU power switches are OFF. Connect DAU 28VDC connector to an externalbench power source of 28 V dc; positive (+) to pin B and negative (-) to pin A.

(2) Connect the MULTI-CH connection on the DAU to the MULTI-CH connection on the Electronic Test Setusing cable part number 29283200.

(3) Position switches on the Electronic Test Set as follows:

(a) 54 mV/g / 100 mV/g switches to 100 mV/g.

(b) ACC Signal Select to 1:1.

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TM 1-6625-736-13&P

Table 4-1. Minimum Specifications of Equipment Required

Minimum Use Manufacturer and ModelCommon Name Specifications (part number)

Aviation Vibration Analyzer (AVA) Range: N/A Scientific-Atlanta, Inc., (29313102)Test Set1 Accuracy: N/A

Cable, Electronic Test Set N/A Scientific-Atlanta, Inc., (29283200)28 Vdc power supply N/A N/ADigital Multimeter2 Range: 3 to 6 V dc John Fluke, Model 8506A/OT

(p/o MIS-35947)Frequency Counter2 Range: 4,7683 Hz Hewlett-Packard, Model 5345A

(209.7183 mS) (MIS-28754/1 Type 1) withAccuracy: ±0.0025% converter, frequency plug-in,

5355A (5355A)Signal Generator2 Range: 5.0 V pk-pk, (SG-1288/G)

50 kHzAccuracy: Nominal

1The Data Acquisition Unit (DAU) (29328201) from the AVA Test Set is required. Evidence of current calibration isnot required.

2Evidence of current calibration is required.

Figure 4-1. Test Equipment Interconnections

4-3

TM 1-6625-736-13&P

(4) Turn on external power source.

(5) Turn DAU power switch ON.

(6) Set signal generator to produce an approximate square wave at 50 KHz and 5V amplitude.

(7) Select range on the DVM to most accurately display 5Vdc.

(8) Connect 50KHz output of signal generator to EXT CLK input of the Electronic Test Set.

(9) Connect shield of EXT ACC input on the Electronic Test Set to signal generator signal ground.

(10) Connect negative (-) lead of DVM to ANALOG GROUND on DAU Acquisition board, or pin C of ACC 1input on DAU front panel.

(11) Connect positive ( + ) lead of DVM to pin C of ACC 1 output on the Electronic Test Set.

d. SIGNAL OUTPUT LEVELNOTE

The absolute value of the output signals is not critical (within a few tenths of a volt) but thedifference between them is important. Therefore record the high and low voltages seen onthe DVM.

At this point with the gain select on 1:1, the output of the DVM should stabilize on about 5.000 V forapproximately 6 seconds, then stabilize on approximately 4.000 V for 6 seconds. If the meter does not havesufficient time to stabilize, reduce the input frequency on the EXT CLK input.

(1) Select 1:4 gain range on the Electronic Test Set. Record high and low DVM readings.



(4) Repeat steps 1 to 3 for accelerometer channels 2, 3 and 4. Do this by measuring the output voltage at theappropriate rear panel connector.

(5) Select 54 mV/g on the Electronic Test Set.

(a) Connect negative (-) lead of DVM to ANALOG GROUND on DAU Acquisition board, or pin B of ACC1 input on DAU front panel.

(b) Connect positive ( + ) lead of DVM to pin B of ACC 1 output on the Electronic Test Set.

(c) Select 1:4 gain range on the Electronic Test Set. Record high and low DVM readings.

(d) Select 1:16 gain range on the Electronic Test Set. Record high and low DVM readings.

(e) Select 1:64 gain range on the Electronic Test Set. Record high and low DVM readings.

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TM1-6625-736-13&P

(f) Repeat steps (c) to (e) for accelerometer channels 2, 3 and 4.

(6) For each measurement recorded, take the difference between the high and low data points. The signallevel measured should be within the .expected tolerance values as stated in table 4-2.

Table 4-2. Expected Signal Output

GAIN RANGE HI-LO MEASUREMENT1:1 0.983V ± 2%/1:4 0.245 V ± 2%1:16 0.060 V ± 2 digits1:64 0.016 V ± 2 digits

e. FREQUENCY OUTPUT

Disconnect the DVM and signal generator from the Electronic Test Set. It is important the EXT ACC bedisconnected. Perform the following:

(1) Select MONO PULSE on the TACH 2 TACHO CONTROL on the Electronic Test Set.

(2) Connect the frequency counter to the TACH 2 BNC output on the rear panel of the Electronic Test Set.

(3) Measure either the frequency output or the period. Compare the results with table 4-3.

Table 4-3. Expected Frequency Output

FREQUENCY OUTPUT OUTPUT PERIOD

4.7683 Hz ± 0.01% 209715000 nS ± 0.01%

4-5

TM 1-6625-736-13&P

SECTION IV-TROUBLESHOOTING

4-11 GENERAL 4-11

Troubleshooting at the AVIM level is limited to checking for normal operation. For information on Error Messages andtroubleshooting the DAU and/or CADU refer to TM1 -6625-724-13&P.

4-12 ELECTRONIC TEST SET 4-12

THIS TASK COVERS: INSPECTION

INITIAL SETUP:

Personnel Required: Technician 35HParts: Electronic Test Set, PN 29085800Equipment Condition: No power applied

a. Check exterior of unit for damage.

b. Check knobs, switches, latches and lights for damage.

c. Inspect locking collar for damage.

d. Inspect lens for scratches or cracks.

e. Inspect connectors on rear panel for damage and/or bent pins.

f. Inspect bottom of unit for serial number.

END OF TASK

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TM 1-6625-736-13&P

4-13 Electronic Test Set System 4-13

THIS TASK COVERS: FAULT LOCATION• Procedure 1: LEDs do not illuminate• Procedure 2: DAU exhibits faulty tolerance readings• Procedure 3: Partial or Failed Test States reported• Procedure 4: Test Set fails to Calibrate/Malfunctions

Initial Setup:Personnel Required: Technician 35HParts: Electronic Test SetEquipment Condition: Connected for operation normal

4-13 Troubleshooting Procedure 1: LEDs do not illuminate 4-13

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TM 1-6625-736-13&P

4-13 Troubleshooting Procedure 2: DAU exhibits faulty tolerance readings 4-13

4-8

TM 1-6625-736-13&P

4-13 Troubleshooting Procedure 3: Partial or Failed lest States reported 4-13

4-9

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4-13 Troubleshooting Procedure 4: Test Set falls to Calibrate/Malfunctions 4-13

4-10

TM 1-6625-736-13&P

SECTION V-MAINTENANCE PROCEDURES

4-14 MAINTENANCE PROCEDURES-GENERAL 4-14

When a maintenance procedure is required, it will usually involve removal of the part being repaired or replaced.Removal procedures are given only to the extent necessary to repair or replace authorized parts.

4-15 SIGNAL GENERATOR PRINTED WIRING ASSEMBLY (PWA) 4-15

THIS TASK COVERS: REMOVAL AND INSTALLATION

Initial Setup: Workbench with ESD capabilityPersonnel Required: TMDE Support SpecialistTools and Equipment: Tool Kit, ElectriciansParts/Materials: Anti-static padEquipment Condition: Unit disconnected, cover removed, Top Plate facing

up on workbench

CAUTIONThis assembly contains parts sensitive to damage by ElectroStatic Discharge (ESD)

Use precautionary ESD procedures when touching, removing or inserting. Use static-freematerial to wrap the assembly for shipment or storage.

GO TO NEXT PAGE

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4-15 SIGNAL GENERATOR PWA (CONTINUED) 4-15

1. REMOVAL:

a. Remove seal (1) by pulling up until seal is free of the enclosure (17).

b. Remove four screws (2) from the Top Plate (7).

c. Pull Top Plate assembly up and to the left to free from enclosure (17) being careful not to damage cableassembly (15).

d. Remove two screws (14), two flatwashers (13) and two lockwashers (12) from cable assembly (15). Disconnectcable assembly from Front Panel I/F PWA (20).

e. Place Top Plate assembly on anti-static pad, face down.

f. Remove four screws (8), four flatwashers (9) and four lockwashers (10) from the Signal Generator PWA (18).

CAUTIONSeparate the Signal Generator PWA from the Front Panel I/F PWA with care so as to not bendthe integrated connecting pins.

g. Remove Signal Generator PWA (18) from Front Panel I/F PWA (20).

2. INSTALLATION:

CAUTIONJoin the Signal Generator PWA and the Front Panel I/F PWA with care so as to not bend theintegrated connecting pins.

a. Join the Signal Generator PWA (18) and the Front Panel I/F PWA (20) by pressing the integrated pins on theSignal Generator PWA board into the female connector on the Front Panel I/F PWA (20).

b. Install four screws (8), four flatwashers (9) and four lockwashers (10).

c. Connect cable assembly (15) onto Front Panel I/F PWA (20). Install two screws (14), two flatwashers (13) andtwo lockwashers (12).

d. Position Top Plate (7) of Top Plate assembly on enclosure (17). Install four screws (2).

e. Start at one corner and press seal (1) into position until flush on enclosure (17).

f. Install top cover.

GO TO NEXT PAGE

4-12

TM 1-6625-736-13&P

4-15 SIGNAL GENERATOR PWA (CONTINUED) 4-15

END OF TASK

4-13/4-14 Blank

TM 1-6625-736-13&P

4-16 FRONT PANEL I/F PRINTED WIRING ASSEMBLY (PWA) 4-16

THIS TASK COVERS: REMOVAL AND INSTALLATION

Initial Setup: Workbench with ESD capabilityPersonnel Required: TMDE Support SpecialistTools and Equipment: Tool Kit, ElectriciansParts/Materials: Anti-static padEquipment Condition: Unit disconnected, cover removed, Top Plate facing

up on workbench

CAUTIONThis assembly contains parts sensitive to damage by ElectroStatic Discharge (ESD)

Use precautionary ESD procedures when touching, removing or inserting. Use static-freematerial to wrap the assembly for shipment or storage.

GO TO NEXT PAGE

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TM 1-6625-736-13&P

4-16 FRONT PANEL I/F PWA (CONTINUED) 4-16

1. REMOVAL:a. Remove seal (1) by pulling up until seal is free of the enclosure (17).

b. Remove four screws (2) from the Top Plate (7).

c. Pull Top Plate assembly up and to the left to free from enclosure (17) being careful not to damage cableassembly (15).

d. Remove two screws (14), two flatwashers (13) and two lockwashers (12) from cable assembly (15). Disconnectcable assembly from Front Panel I/F PWA (20).

e. Place Top Plate assembly on anti-static pad, face down.

f. Remove four screws (8), four flatwashers (9) and four lockwashers (10) from the Signal Generator PWA (18).

CAUTIONSeparate the Signal Generator PWA from the Front Panel I/F PWA with care so as to not bendthe integrated connecting pins.

g. Remove Signal Generator PWA (18) from Front Panel I/F PWA (20).

h. Loosen set screw (4) on knob (3). Remove knob. Remove retaining nut (5) and flatwasher (6).

i. Remove two stand offs (19) from Front Panel I/F PWA (20).

j. Disconnect the four pin UTD test housing/Front Panel I/F PWA connector (P1) (11).

k. Carefully separate Top Plate (7) from Front Panel I/F PWA (20).

I. Remove two stand offs (16) from the Front Panel I/F PWA (20) by removing two screws (8), two flatwashers (9)and two lockwashers (10).

2. INSTALLATIONa. Install two stand offs (16) on the Front Panel I/F PWA (20) using two screws (8), two flatwashers (9) and two

lockwashers (10).

b. Carefully join the Front Panel I/F PWA (20) with the Top Plate (7).

c. Connect the four pin UTD test housing/Front Panel I/F PWA connector (P1) (11).

d. Install two stand offs (19) to Front Panel I/F PWA (20).

e. Install flatwasher (5) and retaining nut (6). Position knob (3) on Top Plate (7) and secure with set screw (4).Ensure pointer on knob coincides with number settings on Top Plate.

GO TO NEXT PAGE

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GO TO NEXT PAGE

4-17

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CAUTIONJoin the Signal Generator PWA and the Front Panel I/F PWA with care so as to not bend theintegrated connecting pins.

f. Join the Signal Generator PWA (18) and the Front Panel I/F PWA (20) by pressing the integrated pins on theSignal Generator PWA board into the female connector on the Front Panel I/F PWA board.

g. Install four screws (8), four flatwashers (9) and four lockwashers (10).

h. Connect cable assembly (15) onto Front Panel I/F PWA (20). Install two screws (14), two flatwashers (13) andtwo lockwashers (12).

i. Position Top Plate (7) of Top Plate assembly on enclosure (17). Install four screws (2).

j. Start at one corner and press seal (1) into position until flush on enclosure (17).

k. Install top cover.

END OF TASK

4-18

TM 1-6625-736-13&P

SECTION VI-PREPARATION FOR STORAGE AND SHIPMENT

4-17 GENERAL 4-17

• Information on preparation for storage and shipment is included in TM-1-1500-204-23 (Series).

• Regulatory requirements pertaining to administrative storage will be found in AR 750-1.

4-19/(4-20 Blank)

TM 1-6625-736-13&P

APPENDIX AREFERENCES

A-1 DICTIONARIES OF TERMS AND ABBREVIATIONSAR 310-25 .............................Dictionary of United States Army TermsAR 310-50 .............................Authorized Abbreviations and Brevity Codes

A-2 PUBLICATIONS INDEXESDA PAM 25-30 ...............................Consolidated Index of Army Publications and Blank Forms

A-3 LOGISTICS AND STORAGETM 1-1500-204-23 (Series) ....General Aircraft Maintenance ManualTM 743-200-1 ........................Storage and Materials Handling

A-4 MAINTENANCE OF SUPPLIES AND EQUIPMENTAR 750-1 ...............................Army Material Maintenance Concepts and PoliciesDA PAM 738-751 ...........................Functional Users Manual for The Army Maintenance Management

System-Aviation (TAMMS)TM 43-0139 ...........................Painting Operations Instructions for Field UseTB 43-180 .............................Calibration and Repair Requirements for the Maintenance of Army

MaterialTB 9-6625-2310-35 ...............Calibration Procedure for AVA Calibration Test Set

A-5 OTHER PUBLICATIONSAR 420-90 .............................Fire Prevention and ProtectionAR 55-38 ...............................Reporting of Transportation Discrepancies in ShipmentsAR 700-58 .............................Packaging Improvement ReportDA PAM 310-13 .............................Military Publications Posting and FilingFM-21-11...............................................First Aid for SoldiersTM 750-244-1-4 .....................Procedures for the Destruction of Aviation Ground Support Equipment

(FSC 6625) to Prevent Enemy Use

A-1/(A-2 Blank)

TM 1-6625-736-13&P

APPENDIX BMAINTENANCE ALLOCATION CHART

SECTION I-INTRODUCTION

B-1. GENERALa. This section provides a general explanation of all maintenance and repair functions authorized at various

maintenance categories.

b. The Maintenance Allocation Chart (MAC) in Section II designates overall authority and responsibility for theperformance of maintenance functions on the identified end item or component. The application of themaintenance functions to the end item or component will be consistent with the capacities and capabilities of thedesignated maintenance categories.

c. Section III lists the tools and test equipment (both special tools and common tool sets) required for eachmaintenance function as referenced from Section II.

d. Section IV contains supplemental instructions and explanatory notes for a particular maintenance function.

B-2. MAINTENANCE FUNCTIONSa. Inspect-To determine the serviceability of an item by comparing its physical, mechanical, and/or electrical

characteristics with established standards through examination (e.g. -by sight, sound or feel).

b. Replace-To remove an unserviceable item and install a serviceable counterpart in its place. "Replace" isauthorized by the MAC and is shown as the 3rd position code of the SMR code.

c. Repair-The application of maintenance services, including fault location/troubleshooting, removal/installation,and disassembly/assembly procedures, and maintenance actions to identify troubles and restore serviceability toan item by correcting specific damage, fault, malfunction, or failure in a part, subassembly, module (componentor assembly), end item, or system.

d. Calibrate-To determine and cause corrections to be made or to be adjusted on instruments or test, measuring,and diagnostic equipment's used in precision measurement. Consists of comparisons of two instruments, one ofwhich is a certified standard of known accuracy, to detect and adjust any discrepancy in the accuracy of theinstrument being compared.

e. Test-To verify serviceability by measuring the mechanical, pneumatic, hydraulic, or electrical characteristics ofan item and comparing those characteristics with prescribed standards.

B-3. EXPLANATION OF COLUMNS IN THE MAC, SECTION IIa. Column 1, Group Number-Column 1 lists functional group code numbers, the purposes of which is to identify

maintenance significant components, assemblies, subassemblies, and modules with the next higher assembly.End item group number shall be "00".

b. Column 2, Component/Assembly-Column 2 contains the names of components, assemblies, subassemblies, andmodules for which maintenance is authorized.

B-1

TM 1-6625-736-13&P

c. Column 3, Maintenance Function-Column 3 lists the functions to be performed on the item listed in column 2.(For detailed explanation of these functions, see paragraph B-2).

d. Column 4, Maintenance Category -

(1) AVUM-Aviation Unit Maintenance. AVUM activities will be staffed and equipped to perform high frequency"On-Equipment" maintenance tasks required to retain or return equipment to a serviceable condition.

(2) USATA-United States Army TMDE Activity provides Aviation Intermediate Maintenance. (AVIM) support.Authorized maintenance includes replacement and repair of modules/components and end items whichcan be accomplished efficiently with available skills, tools, and equipment. USATA inspects,troubleshoots, test, diagnoses, repairs, adjust, calibrates, and aligns system modules and components.

(3) Depot-The printed wiring assemblies (PWAs) are sent back to the depot/factory for repairs.

e. Column 5, Tools and Equipment-Column 5 specifies, by code, those common tool sets (not individual tools) andspecial tools, TMDE, and support equipment required to perform the designated function.

f. Column 6, Remarks-This column shall, when applicable, contain a letter code, in alphabetic order, which shall bekeyed to the remarks contained in Section IV.

B-4. EXPLANATION OF COLUMNS IN TOOL AND TEST EQUIPMENT REQUIREMENTS, SECTION III

a. Column 1, Reference Code-The code recorded in column 5, Section II.

b. Column 2, Maintenance Category-This column lists information pertinent to the maintenance function beingperformed as indicated in the MAC, Section II.

c. Column 3. Nomenclature

d. Column 4, National Stock Number (NSN)

B-2

TM 1-6625-736-13 & P

SECTION II - MAINTENANCE CHART ELECTRONIC TEST SET NSN: 6625-01-347-8667

MAINTENANCECATEGORY

GROUP COMPONENT/ MAINTENANCE TOOLS AND

NUMBER ASSEMBLY FUNCTION AVUM AVIM* DEPOT EQUIPMENT REMARKS

00 Electronic Test Set

01 Electronic Test Set Inspect 0.1 ACalibrate 1.0 2-9 B

Replace 0.5 1

Repair 1.0 X 1

* U.S. Army Test, Measurement and Diagnostic Equipment Support Activity (USATA)

SECTION III - TOOL AND TEST EQUIPMENT REQUIREMENTS

TOOL OR TEST MAINTENANCE NATIONAL/NATOEQUIP REF CODE CATEGORY NOMENCLATURE STOCK NUMBER

1 AVIM Tool Kit, Electricians 5180-01-195-0855

2 AVIM Cable, Test Set (29283200) 6150-01-356-5825

3 AVIM Digital Volt Meter, Four Digit

4 AVIM Frequency/Interval Counter, 0.001 Hz res.

5 AVIM Oscilloscope, 1 MHz bandwidth or better

6 AVIM IBM Compatible Computer

7 AVIM Signal Generator, 10 uS at 50KHz rep

8 AVIM DAU (29328201) 6695-01-325-3391

9 AVIM 28 Vdc Power Supply

B-3

TM 1-6625-736-13 & P

SECTION IV - MAC REFERENCE CODE AND REMARKS

REFERENCE CODE REMARKS / NOTES

A Visual inspection without disassembly

B Verify unit operates within tolerance/specifications

B-4

TM 1-6625-736-13 & P

APPENDIX CREPAIR PARTS AND SPECIAL TOOLS LIST

SECTION I - INTRODUCTION

C-1. SCOPEThis RPSTL-lists and authorizes spares and repair parts; special tools; special test, measurement, and diagnosticequipment (TMDE); and other special support equipment required for performance of AVIM/AVUM maintenanceof the AVA Calibration Test Set. It authorizes the requisitioning, issue, and disposition of spares, repair parts andspecial tools as indicated by the source, maintenance and recoverability (SMR) codes.

C-2. GENERALIn addition to Section I, Introduction, this Repair Parts and Special Tools List is divided into the following sections:

a. Section II. Repair Parts List - A list of spares and repair parts authorized by this RPSTL for use n theperformance of maintenance. The list also includes parts which must be removed for replacement of theauthorized parts. Parts lists are composed of functional groups in ascending alphanumeric sequence, with theparts in each group listed in ascending figure and item number sequence. Bulk materials are listed in item namesequence. Repair parts for repairable special tools are also listed in this illustration(s)/figure(s).

b. Section III. Special Tools List - A list of special tools, special TMDE, and other special support equipmentauthorized by this RPSTL (as indicated by Basis of Issue (BOI) information DESCRIPTION AND USABLE ONCODE column) for the performance of maintenance.

c. Section IV. National Stock Number and Part Number Index - A list, in National Item Identification Number (NIIN)sequence of all National stock numbering items appearing in the listing, followed by a list in alphanumericsequence of all part numbers appearing in the listings. National stock numbers and part numbers are cross-referenced to each illustration figure and item number appearance.

C-3. EXPLANATION OF COLUMNS (SECTIONS II AND III).

a. ITEM NO. (Column (1)) - Indicates the number used to identify items called out in the illustration.

b. SMR CODE (Column (2)) - The Source, Maintenance, and Recoverability (SMR) code is a 5-position codecontaining supply/requisitioning information, maintenance category authorization criteria, and dispositioninstruction, as shown in the following breakout:

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* Complete Rear: Maintenance capacity, capability, and authority to perform all corrective maintenance tasks of the"Repair" function in a use/user environment in order to restore serviceability to a failed item.

(1) Source Code. The source code tells you how you get an item needed for maintenance, repair, or overhaul ofan end item/equipment. Explanations of source codes follow.

Code Explanation

PA, PB, PC**, PD Stocked items; use the applicable NSN to request/requisition items with these sourcePE, PF, PG codes. They are authorized to the category indicated by the code entered in the 3rd

position of the SMR code.

**NOTE : Items coded PC are subject to deterioration.

KD, KF, KB Items with these codes are not to be requested/requisitioned individually. They are part of a kit which is authorized to the maintenance category indicated in the 3rd position of the SMR code. The complete kit must be requisitioned and applied.

KO (made at org/AVUM Level) Items with these codes are not to be requested/requisitioned individually. They mustMF (made at DS/AVIM Level) be made from bulk material which is identified by part number in the DESCRIPTIONMH (made at Specialized Repair AND USABLE ON CODE-(UOC) column and listed in the Bulk Material group of theAct [SRA]) repair parts lists in this RPSTL. If the item is authorized to you by the 3rd positionMD (made at Depot) code of the SMR code, but the source code indicates it is made at a higher level,

order the item from the higher level of maintenance.

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Code Explanation

AO (assembled at org/AVUM Level) Items with these codes are not to be requested/requisitioned in-AF (assembled at DS/AVIM Level) dividually. The parts that make up the assembled item must beAH (assembled at GS Level) requisitioned or fabricated and assembled at the level of mainte-AL (assembled at Specialized nance indicated by the source code. If the 3rd position code of

Repair Act [SRA]) the SMR code authorizes you to replace the item, but the sourceAD (assembled at Depot) code indicates the item is assembled at a higher level, order the

item from the higher level of maintenance.

XA- Do not requisition an "XA" coded item. Order its next higher assembly. (Also, refer to the NOTE below.)

XB- If an "XB" item is not available for salvage, order it using the Commercial and Government Entity (CAGE) and part number given.

XC- Installation drawing, diagram, instruction sheet, field service drawing, that is identified by manufacturer's part number.

XD- Item is not stocked. Order an "XD" coded item through normal supply channels using the CAGE and part number given if no NSN is available.

NOTE: Cannibalization or controlled exchange, when authorized, may be usedas a source of supply for items with the above source codes, except for thosesource coded "XA" or those aircraft support items restricted by requirements ofAR 700-42.

(2) Maintenance Code. Maintenance code tells you the level(s) of maintenance authorized toUSE and REPAIR support items. The maintenance codes are entered in the third and fourthpositions of the SMR Code as follows:

(a) The maintenance code entered in the third position tells you the lowest maintenancelevel authorized to remove, replace, and use an item. The maintenance code entered inthe third position will indicate authorization to one of the following levels of maintenance.

Code Application/Explanation

C - Crew or operator maintenance done within organizational or aviation unit maintenance.

O - Organizational or aviation unit category can remove, replace, and use the item.

F - Direct support or aviation intermediate level can remove, replace, and use the item.

H - General support level can remove, replace, and use the item.

L - Specialized repair activity can remove, replace, and use the item.

D - Depot level can remove, replace, and use the item.

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(b) The maintenance code entered in the fourth position tells whether or not the item is to berepaired and identifies the lowest maintenance level with the capability to do completerepair (i.e., perform all authorized repair functions.)

NOTE: Some limited repair may be done on the item at a lower level of maintenance, ifauthorized by the Maintenance Allocation Chart (MAC) and SMR codes.

This portion will contain one of the following maintenance codes.

Code Explanation

O - Organizational or (aviation unit) is the lowest level that can do complete repair of the item.

F - Direct support or aviation intermediate is the lowest level that can do complete repair of theitem.

H - General support is the lowest level that can do complete repair of the item.

L - Specialized repair activity (designates the specialized repair activity) is the lowest level that cando complete repair of the item.

D - Depot is the lowest level that can do complete repair of the item.

Z - Non repairable. No repair is authorized.

B - No repair authorized. (No parts or special tools are authorized for the maintenance of a "B"coded item.) However, the item may be reconditioned by adjusting, lubricating, etc., at the userlevel.

(3) Recoverability Code. Recoverability codes are assigned to items to indicate the dispositionaction on unserviceable items. The recoverability codes entered in the fifth position of theSMR Code as follows:

Code Explanation

Z - Non repairable item. When unserviceable, condemn and dispose of the item at the level ofmaintenance shown in 3rd position of SMR Code.

O - Repairable item. When uneconomical repairable, condemn and dispose of the item atorganizational or aviation unit level.

F - Repairable item. When uneconomically repairable, condemn and dispose of the item at thegeneral support level.

H - Repairable item. When uneconomically repairable, condemn and dispose of the item at thegeneral support level.

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Code Explanation

D - Repairable item. When beyond lower level repair capability, return to depot. Condemnationand disposal of item not authorized below depot level.

L - Repairable item. Condemnation and disposal not authorized below specialized repair activity(SRA).

A - Item requires special handling or condemnation procedures because of specific reasons(e.g., precious metal content, high dollar value, critical material, or hazardous material). Referto appropriate manuals/directives for specific instructions.

c. CAGE (Column (3)) - The Commercial and Government Entity (CAGE) is a 5-digit numeric code which is used toidentify the manufacturer, distributor, or Government agency, etc., that supplies the item. CAGE consolidatesthe former H5 Federal Supply Code for Manufacturers (FSCM) and H8 Federal Supply Code for Non-Manufacturers (FSCNM).

d. PART NUMBER (Column (4)) - Indicates the primary number used by the manufacturer (individual, company,firm, corporation, or Government activity), which controls the design and characteristics of the item by means ofits engineering drawings, specifications standards, and inspection requirements to identify an item or range ofitems.

NOTE: When you use an NSN to requisition an item, the item you receive may have a different part number from thepart ordered.

e. DESCRIPTION AND USABLE ON CODE (Column (5)) - This column includes the following information:

(1) The Federal item name and, when required, a minimum description to identify the item.

(2) The physical security classification of the item is indicated by the parenthetical entry (insert applicablephysical security classification abbreviation, e.g. Phy Sec C1 (C) Confidential, Phy Sec C1 (S) Secret, PhySec C1 (T) Top Secret).

(3) Items that are included in kits and sets are listed below the name of the kit or set.

(4) Spare/repair parts that make up an assembled item are listed immediately following the assembled itemline entry.

(5) Part numbers for bulk materials are referenced in this column in the line item entry for the item to bemanufactured/fabricated.

(6) When the item is not used with all serial numbers of the same model, the effective serial numbers areshown on the last line of the description (before UOC).

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(7) The usable on code, when applicable (see paragraph C-5, Special information).

(8) In the Special Tools List section, the basis of issue (BOI) appears as the last line(s) in the entry for eachspecial tool, special TMDE, and other special support equipment. When density of equipment's supportedexceeds density spread indicated in the basis of issue, the total authorization is increased proportionately.

(9) The statement "END OF FIGURE" appears just below the last item description in Column 5 for a givenfigure in both Section II and Section III.

f. QTY (Column (6)) The QTY (quantity per figure column) indicates the quantity of the item used in the breakoutshown on the illustration figure, which is prepared for a functional group, sub functional group, or an assembly. A"V" appearing in this column in lieu of a quantity indicates that the quantity is variable and the quantity may varyfrom application to application.

C-4. EXPLANATION OF COLUMNS (SECTION IV)

a. -NATIONAL STOCK NUMBER (NSN) INDEX

(1) STOCK NUMBER Column - This column lists the NSN by National Item Identification Number (NIIN)sequence. The NIIN consists of the last nine digits of the NSN.

example: 5305-01-674-1467 - NIIN

When using this column to locate an item, ignore the first 4 digits of the NSN. However, the completeNSN should be used when ordering items by stock number.

(2) FIG. Column- This column lists the number of the figure where the item is identified/ located. The figuresare in numerical order in Section II and Section III.

(3) ITEM Column - The item number identifies the item associated with the figure listed in the adjacent FIG.column. This item is also identified by the NSN listed on the same line.

b. PART NUMRER INDEX - Part numbers in this index are listed by part number in ascending alphanumericsequence (i.e., vertical arrangement of letter and number combination which places the first letter or digit of eachgroup in order A through Z, followed by the number 0 through 9 and each following letter or digit in like order).

(1) CAGE Column - The Commercial and Government Entity (CAGE) is a 5-digit numeric code which is usedto identify the manufacturer, distributor, or Government agency, etc., that supplies the item. CAGEconsolidates the former H5 Federal Supply Code for Manufacturers (FSCM) and H8 Federal Supply Codefor Non-Manufacturers (FSCNM).

(2) PART NUMBER - Column Indicates the primary number used by the manufacturer (individual, firm,corporation, or Government activity), which controls the design and characteristics of the item by means ofits engineering drawings, specifications standards, and inspection requirements to identify an item or rangeof items.

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(3) STOCK NUMBFR Column This column lists the NSN for the associated part number and manufactureridentified in the PART NUMBER and FSCM columns to the left.

(4) FIG. Column This column lists the number of the figure where the item is identified/ located in Section IIand Section III.

(5) ITEM Column The item number is that number assigned to the item as it appears in the figure referencedin the adjacent figure number column.

C-5. SPECIAL INFORMATION - Use the following subparagraphs as applicable:

a. USABLE ON CODE - The usable on code appears in the lower left corner of the Description column heading.Usable on codes are shown as "UOC.........” in the Description Column (justified left) on the first line applicableitem description/nomenclature. Uncoded items are applicable to all models. Identification of the usable oncodes used in the RPSTL are:

Code Used OnN/A N/A

b. FABRICATION INSTRUCTIONS - Bulk materials required to manufacture items are listed in the Bulk MaterialFunctional Group of this RPSTL. Part number for bulk materials are also referenced in the description column ofthe line item entry for the item to be manufactured/fabricated.

c. ASSEMBLY INSTRUCTION - N/A

d. KITS - Line item entries for repair parts kits appear in a group in Section II.

e. INDEX NUMBERS - Items which have the word BULK in the figure column will have an index number shown nthe item number column. This index number is a cross-reference between the National Stock Number/PartNumber Index and the bulk material list in Section II.

f. ASSOCIATED PUBLICATIONS- N/A

C-6. HOW TO LOCATE REPAIR PARTS

A. When National Stock Number or Part Number is not known:

STEP 1 Using the table of contents, determine the assembly group or subassembly group to which the itembelongs. This is necessary since figures are prepared for assembly and subassembly groups, and listingsare divided into the same groups.

STEP 2 Find the figure covering the assembly group or subassembly group to which the item belongs.

STEP 3 Identify the item on the figure and note the item number.

STEP 4 Refer to the Repair Parts List for the figure to find the part number for the item number noted on thefigure.

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STEP 5 Refer to the Part Number Index to find the NSN, if assigned.

B. When National Stock Number or Part Number is known:

STEP 1 Using the Index of National Stock Numbers and Part Numbers, find the pertinent National Stock Numberor Part Number. The NSN index is in National Item Identification (NIIN) sequence (see C-4.a.(1)). Thepart numbers in the Part Number Index are listed in ascending alphanumeric sequence (see C-4.b). Bothindexes cross-reference you to the illustration figure and Item Number of the item you are looking for.

STEP 2 After finding the figure and item number, verify that the item is the one you are looking for, then locate theitem number in the repair parts list for the figure.

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Figure C-1. Electronic Test Set (Sheet 1 of 2)

TM 1-6625-736-13 & P

Figure C-1. Electronic Test Set (Sheet 2 of 2)

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SECTION II

(1) (2) (3) (4) (5) (6)

ITEM SMR PARTNO CODE CAGE NUMBER DESCRIPTION AND USABLE ON CODES(UOC) QTY

GROUP 01

FIGURE C-1 ELECTRONICTEST SET

PBFFF 20227 29085800 Electronic Test Set ................................................................. 11 XDFZZ 58993 ZPS-5-511-1 .Seal ...................................................................................... 12 XDFZZ 20227 29726700 .Top Plate Assembly............................................................... 13 XDFZZ 20227 28120000 ..Knob ................................................................................... 14 XDFZZ 96906 MS51021-10 ...Set Screw ........................................................................... 15 XDFFF 20227 29726300 ..Top Plate ............................................................................. 16 XDFZZ 12324 42918900 ..Screw .................................................................................. 47 XDFZZ 20227 29332000 ...Bracket, Alignment ............................................................. 18 XDFZZ 20227 29332600 ...Hinge, Support ................................................................... 19 XDFZZ 96906 MS51957-14 ...Screw, Pan Head ................................................................ 7

10 XDFZZ 20227 28134303 ...Stud, Wing Head ................................................................ 111 XDFZZ 20227 28134301 ...Ring, Retaining ................................................................... 112 XDFZZ 20227 29332400 ...Support Tube ...................................................................... 113 XDFZZ 20227 28126100 ...Lens Mount, Green.............................................................. 2814 PBFFL 20227 29248500 ..PWA, Front Panel I/F .......................................................... 115 PAFFF 20227 29250200 .Wiring Harness, Test Set (REF C-2) ...................................... 116 XDFZZ 96906 MS51957-3 .Screw, Pan Head................................................................... 217 XADZZ 96906 MS15795-802 .Washer, Flat ......................................................................... 218 XADZZ 96906 MS35338-134 .Washer, Lock ........................................................................ 219 XDFZZ 20227 28030704 ..Standoff ............................................................................... 220 XDFZZ 96906 MS51957-28 ..Screw, Pan Head.................................................................. 821 XDFZZ 80205 NAS620C6 ..Washer, Flat ........................................................................ 822 XADZZ 96906 MS35338-136 ..Washer, Lock ....................................................................... 823 XDFZZ 20227 28109902 ..Standoff, Male/Female ......................................................... 224 PBFFL 20227 29248000 ..PWA, Signal Generator ........................................................ 125 XDFFF 20227 29726000 .Enclosure ............................................................................. 126 XDFZZ 20227 29726400 ..Bracket, Support .................................................................. 227 XDFZZ 20227 28120400 ..Handle ................................................................................ 128 XADZZ 96906 MS35335-62 ..Washer, External Tooth ....................................................... 2

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SECTION II

(1) (2) (3) (4) (5) (6)


GROUP 01

FIGURE C-1 ELECTRONICTEST SET (Continued)

29 XDFZZ 96906 MS51959-15 ...Screw, Flat Head................................................................. 330 XDFZZ 20227 29332300 ...Plate, Alignment, Lower ...................................................... 131 XDFZZ 20227 28111906 ...O Ring ............................................................................... 132 XDFZZ 20227 28126000 ...Lens ................................................................................... 133 XDFZZ 20227 29332200 ...Retainer, Lens ..................................................................... 134 XADZZ 96906 AN960-C4 ...Washer, Flat ...................................................................... 335 XADZZ 96906 MS35338-135 ...Washer, Lock ...................................................................... 336 XDFZZ 20227 28091210 ...Connector (P1) .................................................................... 137 XDFZZ 20227 28091203 ...Contact ............................................................................... 438 XDFZZ 20227 M22759/11- ...Wire, 22 AWG..................................................................... Ref

22-939 XDFZZ 20227 28126101 ...Lens Mount, Clear ............................................................... 2

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Figure C-2. Test Set Wiring Harness

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SECTION II

(1) (2) (3) (4) (5) (6)


GROUP 0101

FIGURE C-2 Wiring Harness, Test Set

PAFFF 20227 29250200 Wiring Harness, Test Set........................................................ 11 PAFZZ 20227 28034210 .Connector (P2) ...................................................................... 12 PAFZZ 20227 28034211 .Contact ................................................................................. 633 PAFZZ 96906 MS3112 E8-3P .Connector (J1-J4).................................................................. 44 XDFZZ 96906 MS51959-15 .Screw, Flat Head................................................................... 285 PAFZZ 96906 MS27508E16B55P .Connector (J6) ...................................................................... 16 PAFZZ 96906 MS3112E10-6P .Connector (J7) ...................................................................... 17 PAFZZ 96906 MS3102A10SL-4P .Connector (J8) ...................................................................... 18 PAFZZ 20227 28003301 .Connector (J9-J14) ............................................................... 69 PAFZZ 96906 MS25036-144 .Ground Lug .......................................................................... 1

10 MFDZZ 20227 M22759/32-24-9 .Wire, 24 AWG ...................................................................... A/R11 MFDZZ 20227 M27500-24TG2U00 .Wire, 24 AWG (Twisted Pair) ................................................ A/R12 MFDZZ 20227 28046801 .Cable, Coax, RG188.............................................................. A/R

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Figure C-3. Test Set Cable Assembly

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(1) (2) (3) (4) (5) (6)


GROUP 02

FIGURE C-3 Test Set Cable Assembly

PAFFF 20227 29283200 Cable Assembly, Test Set....................................................... 11 PAFZZ 96906 MS27473T16B55P .Connector (P1) ...................................................................... 12 PAFZZ 96906 MS27473T16B55S .Connector (P2) ..................................................................... 13 PAFZZ 20227 28125700 .Adapter, Connector Backshell................................................ 24 MFDZZ 20227 M27500-24SB2U00 .Cable, 24 AWG (Twisted Pair) .............................................. A/R5 MFDZZ 20227 M22759/32-24-9 .Wire, 24 AWG (White) ......................................................... A/R

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SECTION III

SPECIAL TOOLS LIST

Not applicable for the Electronic Test Set

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SECTION IV

CROSS-REFERENCE INDEXES

NATIONAL STOCK NUMBER INDEX

STOCK NUMBER FIG ITEM

5998-01-347-8637 C-16625-01-347-8667 C-1 145998-01-348-0209 C-1 246150-01-356-5825 C-3

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SECTION IV


PART NUMBER INDEX

CAGE PART NUMBER STOCK NUMBER FIG ITEM

96906 AN960-C4 C-1 3496906 MS15795-802 C-1 1796906 MS25036-144 C-2 896906 MS27473T1 6B55P C-3 196906 MS27473T1 6B55S C-3 296906 MS27508E16B55P C-2 496906 MS3102A10SL-4P C-2 696906 MS3112 E8-3P C-2 396906 MS3112 E10-6P C-2 596906 MS35335-62 C-1 2896906 MS35338-134 C-1 1896906 MS35338-135 C-1 3596906 MS35338-136 C-1 2296906 MS51021-10 C-1 496906 MS51957-14 C-1 996906 MS51957-3 C-1 1696906 MS51957-28 C-1 2096906 MS51959-15 C-1 2920227 28003301 C-2 720227 28034210 C-2 120227 28034211 C-2 220227 28046801 C-2 1120227 M22759/11-22-9 C-1 3880205 NAS620C6 C-1 2158993 ZPS-5-511 -1 C-1 120227 28030704 C-1 1920227 28091203 C-1 3720227 28091210 C-1 3620227 28109902 C-1 2320227 28111906 C-1 3120227 28120000 C-1 320227 28120400 C-1 2720227 28125700 C-3 320227 28126000 C-1 3220227 28126100 C-1 1320227 28126101 C-1 3920227 28134301 C-1 1120227 28134303 C-1 1020227 29085800 6625-01-347-8667 C-120227 29248000 5998-01-348-0269 C-1 2420227 29248500 5998-01-347-8637 C-1 1420227 29250200 C-1 1520227 29250200 C-220227 29283200 6150-01-356-5825 C-2

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SECTION IV


PART NUMBER INDEX

CAGE PART NUMBER STOCK NUMBER FIG ITEM

20227 29283200 C-320227 29332000 C-1 720227 29332200 C-1 3320227 29332300 C-1 3020227 29332400 C-1 1220227 29332600 C-1 820227 29726000 C-1 2520227 29726300 C-1 520227 29726400 C-1 2620227 29726700 C-1 212324 429189000 C-1 6

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APPENDIX D

EXPENDABLE/DURABLE SUPPLIES AND MATERIALS LIST

SECTION I- INTRODUCTION

D-1 SCOPEThis appendix lists expendable supplies and materials you will need to operate and maintain the AVA CalibrationTest Set. This listing is for informational purposes only and is not authority to requisition the listed items. Theseitems are authorized to you by CTA 50-970, Expendable/ Durable Items (except Medical, Class V, Repair Parts,and Heraldic Items), or CTA 8-100, Army Medical Department Expendable/Durable Items.

D-2 EXPLANATION OF COLUMNS

a. Column (1) - Item Number. This number is assigned to the entry in the listing and is referenced in thenarrative instructions to identify the material (e.g., "Use cleaning compound, item 5, App. D").

b. Column (2) - Level. This column identifies the lowest level of maintenance that requires the listed item.

(enter as applicable) -C - Operator/CrewO - Organizational MaintenanceF - Direct Support MaintenanceH - General Support Maintenance

c. Column (3) - National Stock Number. This is the national stock number assigned to the items; use it torequest or requisition the item.

d. Column (4) - Description. Indicates the Federal item name and, if required, a description to identify the item.The last line for each item indicates the Commercial and Government Entity (CAGE) Code in parenthesesfollowed by the part number.

e. Column (5) - Unit of Measure (U/M). Indicates the measure used in performing the actual maintenancefunction. This measure is expressed by a two-character alphabetical abbreviation (e.g., ea., in, pr). If theunit of measure differs from the unit of issue, requisition the lowest unit of issue that will satisfy yourrequirements.

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SECTION II - EXPENDABLE/DURABLE SUPPLIES AND MATERIALS LIST

(1) (2) (3) (4) (5)Item Part

Number Level Number Description U/M

1 F 7930-01-064-5179 Cleaner (Spray) Can2 F Chemtronics CSP120 Lens Cleaner Roll

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APPENDIX E

MANUFACTURED ITEMS LIST

E-1 GENERAL E-1

This appendix contains the procedures for fabricating the manufactured items you are authorized to make.

E-2 WIRING - MANUFACTURE E-2

This task covers:Fabrication

INITIAL SETUPPersonnel RequiredTMDE Support Specialist

FABRICATION:

NOTEBe sure the wire you cut is the same gage as the wire you are replacing. Identify wire byusing color coded tape, the same color as the wire you are replacing.

(1) Cut a suitable length of wire from a spool of bulk wire.

(2) Note what type and size of connector the old wire had and match them for the new wire.

(3) Measure the length of the old wire. When cutting the new wire, add 6 in. to this length.

NOTEIf splicing a wire, use heat shrink tubing over spliced area.

(4) Fasten the first connector splice to one end of the wire.

NOTECheck new wire for continuity before installation.

(5) Install the wire, following the path of the old wire as much as possible.

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(6) Fasten the wire in place with tape, nylon ties or shrink wrap.

(7) If wire is spliced and heat shrink tubing is used, shrink tubing using a suitable heat source.

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APPENDIX F

TORQUE LIMITS

Table F-1 gives the standard torque values for studs, nuts, bolts, and screws. Exceptions to the following values aregiven in the maintenance task where appropriate.

Table F-1. Standard Torque Limits

THREAD DIAMETER STANDARD TORQUESCREW THREADS 1 lb ft.SIZE NO. PER INCH

Use these torques for bolts and nuts with standard threads.

17 Max

8

2 56

10 24

Use these torques for bolts and nuts on hydraulic valve bodies with standard threads.

6 322 32 2.0

NOTETo determine breakaway torque, thread nut onto screw or bolt until at least two threads stickout. Nut shall not make contact with a mating part. Stop the nut. Torque necessary to beginturning nut again is the breakaway torque. Do not resuse self-locking nuts that do not meetminimum breakaway torque.

F-1/(F-2 blank)

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ALPHABETICAL INDEX

A

Abbreviations/Acronyms ............................................................................................................... 1-3

B

Before You Operate ..................................................................................................................... 2-5

C

CADUProgramming of ...................................................................................................................... 2-6

Calibrated DataComparing of .......................................................................................................................... 2-11

Calibration of DAU, see Operation

Characteristics, Capabilities And Features ................................................................................... 1-4

ConnectionsRear Panel ............................................................................................................................. 2-1

D

DAU CalibrationProcedures for ........................................................................................................................ 2-8

Destruction Of Army Material ....................................................................................................... 1-1

E

Equipment Data ........................................................................................................................... 1-4

Electronic Test SetCalibration of ......................................................................................................................... 4-2Calibration Procedure ............................................................................................................. 4-2Description of ......................................................................................................................... 1-5Operation of ........................................................................................................................... 2-5

F

Front PanelDescription ............................................................................................................................. 2-3

I

Indicator LightsDescription ............................................................................................................................. 2-3

INDEX-1

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ALPHABETICAL INDEX (continued)

Installation .................................................................................................................................... 2-5

IntroductionGeneral Information ............................................................................................................... 1-1

L

LED, see Indicator Lights

M

Maintenance Allocation Chart ....................................................................................................... B-1

Maintenance Forms, Records and Reports.................................................................................... 1-1

Maintenance Operations (AVIM) .................................................................................................. 4-1

Maintenance Operations (AVUM).................................................................................................. 3-1

Maintenance Procedures............................................................................................................... 4-11

Manufactured Items List ................................................................................................................ E-1

MeasurementSuccessful Completion of ....................................................................................................... 2-10

O

Operation Under Normal Conditions.............................................................................................. 2-5

Operation Under Unusual Conditions ............................................................................................ 2-5

Operator Controls and IndicatorsDescription and Use of............................................................................................................ 2-1

P

Preparation For Storage and Shipment ........................................................................................ 4-19

Preventive Maintenance Checks .................................................................................................. 2-5

Principles of Operation.................................................................................................................. 1-6

R

References.................................................................................................................................... A-1

Repair Parts and Special Tools List .............................................................................................. C-1

INDEX - 2

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ALPHABETICAL INDEX (continued)

Reporting Equipment Improvement Recommendations................................................................. 1-1

RPSTL, see Repair Parts and Special Tools List

S

SetupProcedures for ....................................................................................................................... 2-7

Supplies/Materials List ................................................................................................................. D-1

SwitchesDescription.............................................................................................................................. 2-3

T

Tail NumberSelection of ............................................................................................................................ 2-9

Test StatesErrors in ................................................................................................................................. 2-9Successful Completion of ....................................................................................................... 2-9

Torque Limits ................................................................................................................................ F-1

TroubleshootingDAU faulty readings ................................................................................................................ 4-8General .................................................................................................................................. 4-6Inspection ............................................................................................................................... 4-6LED illumination...................................................................................................................... 4-7Partial or failed test states....................................................................................................... 4-9Test Set fails to Calibrate/Malfunctions .................................................................................. 4-10

U

Unpacking..................................................................................................................................... 2-5

UTDMeasurement of ..................................................................................................................... 2-14Testing of................................................................................................................................ 2-11

INDEX - 3/(INDEX - 4 Blank)

TM 1-6625-736-13&P

By Order of the Secretary of the Army:

GORDON R. SULLIVANOfficial: General, United States Army

Chief of StaffJOEL B. HUDSON

Acting Administrative Assistant to theSecretary of the Army

00104

DISTRIBUTION:To be distributed in accordance with DA Form 12-31 -E, block no. 3493, requirements for TM 1-6625-736-13&P.

*U.S. GOVERNMENT PRINTING OFFICE: 1995-655-121/20114

TM 1-6625-736-13&P

NOTES: UNLESS OTHERWISE SPECIFIED1. (A). RESISTANCE VALUES ARE IN OHMS.

(B). RESISTORS ARE 1/8 W, 1%(C). CAPACITOR VALUES ARE IN MICROFARADS.(D). CAPACITORS ARE 50V, 20%

FO-1. SIGNAL GENERATOR SCHEMATIC DIAGRAM (SHEET 1 OF 4)

FP-1/(FP-2 Blank)

TM 1-6625-736-13&P


FP-3/(FP-4 Blank

TM 1-6625-736-13&P


FP-5/(FP-6 Blank

TM 1-6625-736-13&P


FP-7/(FP-8 Blank

TM 1-6625-736-13&P

FO-3. FRONT PANEL INTERFACE SCHEMATIC DIAGRAM (Sheet 1 of 3)

NOTES: UNLESS OTHERWISE SPECIFIED1. (A). RESISTANCE VALUES ARE IN OHMS.

(B). RESISTORS ARE 1/4 W, 5%

FO-2. FRONT PANEL INTERFACE SCHEMATIC DIAGRAM

FP-9/(FP-10 Blank

TM 1-6625-736-13&P

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Subject: DA form 2028

1. From: Joe Smith2. Unit: home3. Address: 4300 Park4. City: Hometown5. St: MO6. Zip: 777777. Date Sent: 19-OCT-938. Pub no: 55-2840-229-239. Pub Title: TM10. Publication Date: 05-JUL-8511. Change Number: 712. Submitter Rank: MSG13. Submitter Fname: Joe14. Submitter Mname: T15. Submitter Lname: Smith16. Submitter Phone: 123-123-123417. Problem: 118. Page: 219. Paragraph: 320. Line: 421. NSN: 522. Reference: 623. Figure: 724. Table: 825. Item: 926. Total: 12327. Text:This is the text for the problem below line 27.

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TM 1-6625-736-13&P TECHNICAL MANUAL *OPERATOR'S AND … · Data from the CADU is then compared with the specifications in this manual. If desired, the user may produce a hard copy